Question: On May 20 2015 Montero Co paid 1 000 000 to acquire

On May 20, 2015, Montero Co. paid $1,000,000 to acquire 25,000 common shares (10%) of ORD Corp. as a long-term investment. On August 5, 2016, Montero sold one-half of these shares for $625,000. What valuation method should be used to account for this stock investment? Prepare entries to record both the acquisition and the sale of these shares.